Cognomen Royker (Royker 
) , around the globe, is a rare last name. The cognomen Royker is characteristic of South Africa, where it is a rare surname, Venezuela, where it is a very rare surname, and Mexico, where it is an extremely rare surname. In absolute terms, it is the most numerous in South Africa, Venezuela, and the United States. Much less frequently, Royker is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Royker | United States, Venezuela, South Africa, France, India |